Seam-pressing machine



' (No Model.)

SBAM PRBSSING MACHINE.

Patented July-12, 1887.

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(No Model.) 2 Sheets-Sheet 2.

C. W. HASELTON.

SRAM PRESSING MACHINE.

No. 366,582. 'Patented July 12, 1887.

" 23 CDSCCO) figg N4 PETERS. Prma-Limugnphen Wuhingiun. D4 t;

UNITED STATES PATENT OFFICE..

CHARLES W. HASELTON, OF HAVERHILL, MASSACHUSETTS.

SAIVl-PRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 366,582, dated July 12l188'7.

Application filed March l0, 1887. Serial No. 230,357. (No model.)

To all r11/"1,0122, may concern.-

Beit known that I, CnARLEsW. HAsEL- TON, of Haverhill, in the county ofEssex and State of Massachusetts, have invented certain new and usefulImprovements in Seam-Pressing Machines, of which the following is aspeciiication.

My invention relates to machines for pressing or rubbing the seams inleather-work.

In order to properly smooth and finish seams in the manufacture of bootsand shoes or other articles made from leather, it has been proposed tosubstitute for the somewhat slow and tedious process of rubbing 7 theseams by appliances of various characters a method consisting in passingthe seamed article between two rotating rollers, so constructed andarranged that they will press down the projecting edges of and properlyliatten and smooth the seam as it is passed therebetween. It has beencommon in the construction of machines designed to carry out thisprocess to make them, so far as the frame for supporting the operativeparts of the machine is concerned, in the form of an ordinarysewing-machinethat is, with a bed, an overhanging arm, and a standard orsupport for the overhangingarm. In this construction of machines therollers have usually been arranged with their axles or journal-shafts ina position parallel with the overhanging arm and main drivingshafttherein and between the free end of the overhanging arm and the bed ofthe machine. IVhile contrivances of this kind are desirable for manyreasons, chief among which are that they may be easily and cheaplymanufactured and are convenient in use, and while such machines, undercertain circumstances and on certain classes of work, quite fully answerthe purposes of their construction, they are open to a number ofobjections when used on goods of varying grade or character, or when theseam in the same grade of material varies in bulk or thickness-as, forexample, when a cross-seam occurs on the line of the seam being operatedupon-which event will cause a springing of the overhanging arm by whichthe upper roller is supported, in order to let the bulky portion in theseam pass between the two rollers, and so throw the upper roller out ofline with its lower co-operating fellow and produce imperfect work.Again, it is difficult, if not quite impossible, to so arrange andadjust asingle pair of rollers that by once passing a seam therebetweenof any grade or character of goods thoroughly efficient and satisfactorysmoothing or pressing of the same will be accomplished.

It is the purpose of my improvements to overcome these and otherobjections in machines of the character mentioned, as also in machinesin which the pressing-rollers are arranged iu line with the overhangingarm and with their axles orjournal-shafts at right angles thereto, whichimprovements I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification,Figure l is a side elevation of a machine embodying my invention. Fig. 2is a front end elevation of thcsamc. Fig. 3 is a section on the line 2 2of Fig. 1. Fig. 4 is a sectional detail partially on the line 3 3 andpartially on the line 4 4 of Fig. 2. Fig. 5 is a transverse section onthe line 5 5 0f Fig. 2.

Similar letters of reference indicate similar parts in all of the views.

a indicates the bed of the machine, b the overhan'ging arm, and c thestandard supporting the same. d represents the main drivingshaft,suitably journaled in the overhanging arm and having the driving-pulleyc attached to its rear end, whereby the machine may be operated. Saidmain shaft is provided on its forward end with a worm, f, adapted toengage and operate a worm-gear, g, the teeth of which in turn mesh withtwo small gear-wheels, 7l h. as most clearly represented in Fig. 4. Saidgear-wheels g It h are journaled in suitable supports attached to orforming a part of the over` hanging arm, and on the axles orjournal-shafts of the wheels h 7L (which axles extend at right angles tothe main shaft and overhanging arm) are affixed two presser-rollers, t'i.

Extending vertically through a chamber formed in the forward 'end ofoverhanging arm bis a rod, j, between the arms of the bifurcated orforked lower end of which, on a pin j, is journaled a roller, k. Saidrod j is provided with a collar or offset, jz, toward its lower end, ata point within the chamber forlned in the overhanging arm, and has a nutor head, ja,

ITO

. screwed on its upper end and resting on the.'

.overhanging arm. A spiral spring, Z, surrounds said rod j within thechamber aforesaid and bears with its upper end against the overhangingarm at the upper end of said chamber and at its lower end against collarjt, the result of this construction being to hold roller 7c dow-n withav yielding pressure.

m represents a vertical shaft arranged in standard c'and provided on itsupper end with a bevel-gear, m', intermeshing with alike gear, fm, onmain shaft d, and having a bevel-gear, m3, secured to its lower end,engaging with and adapted to operate asimilar gear, m4, on a revolublehorizontal shaft, n, j ournaled in suitable bearings underneath the bedof the machine. Said shaft n is provided on its forward end with a worm,o, engaging with a rotary worm-gear, p, which in turn engages a gear, q,on the journal-shaft of which is secured a pulley, r, (shown in dottedlines in Fig. l.)

s s represent two standards secured to the forward end of the bed. a,between which and supported at itsl ower end on springs t, so as toyield vertically, is another standard, ufguided in any suitable manner,in whatever vertical movements it may have, by the standards s s. O11the upper end of standard u is journaled a roller, o, and to thejournal-shaft or axle ofsaid roller o is affixed a pulley, fr', (shownin dotted lines in Fig. 1,) which pulley is adapted to receive a belt,r2, passing also over pulley r.

Standard u is provided with an arm, a', eX- tending forward therefrom,in the end of which arm is journaled a roller, w, as most clearly seeni'n Fig. 1.

Ihe arrangement or relationship ofthe several rollers mentioned withrespect to each other is such that roller 7c will be directly above oropposite roller w on the front of the machine, with their peripheriesadapted to roll in, or nearly in, contact with each other,'and roller v,very much larger in diameter than the other "rollers, located in therear of roller w, on aline with overhanging arm b, with rollers h harranged thereabove, so as to have their peripheries roll in contact, ornearly so, with the periphery of roller v.

a: su' represent guides, respectively, bridging the space betweenrollers h and k and v and w, to support and guide'the material being fedbetween the two sets of rollers.

By reference to Fig. 2 it will be seen that `the periphery of roller wflares upward from each side, terminating in a quite narrow or sharpange, and that the periphery of roller 7c is grooved, in formsubstantially the opposite of the form of the periphery of roller 1 0.

Roller i is preferably made in three parts#- that is, as three separatedisks, y y ythe center one of which is rigidly fixed to thejournal-shaft of said roller, while those y y at the sides are adaptedto turn loosely thereon, or are held to turn with disk y only by thewashers a z bearing laterally thereagainst, all as clearly shownin Fig.3. It is also to be noted that disk y is somewhat larger in diameter'than disks y y', and rthat its periphery is slightly rounded,corresponding to the groove o', formed A in roller or Fig. 2. l

Roller i is preferably formed with a flat face or periphery, and isarranged to roll in contact, or nearly so, with roller v, while rollert' is ar ranged at aslightly greater distance therefrom. The rotation ofrollers i i n is so timed that their surface speed will be about equal.

In the operation of the machine the material is first passed betweenrollers candw, by which operation the edges of the seamxare spread andslightly pressed, so as to insure their presentation in proper positionto the rollers i o i'. After the material leaves rollers k w it passesbetween guides x x', which support and guide it betweenrol-lers o fi,where the seam is further pressed. The provision made for theindependent rotation of disks y y permits of any unevenness ordifference in bulk of material on one side of the seam to pass lwithoutaffectingthe action of the roller on the other side. The projectingperiphery of disk y and groove o' in roller o provides for pressing thematerial at the point of actual junction a little below the sides, sothat when the material leaves said .I

rollers and springs slightly backward toward its former position the twounited pieces will lie substantially straight or fiat, in which positionit will pass between rollers v and i' and receive nal pressing orsmoothing down. 'Ihe supporting devices for rollers v w being stepped onspring t, provision is made for said rollers to yield vertically toadapt lthem to the treatment of seams of varying thickness or bulk. Thepreliminary opening and pressing of the seam by the operation of rollersw 7c, to which the material is iirst fed, as aforesaid, is an importantfeature of my invention. In this way the seam will be thoroughlypressed, smoothed, and nished at a single operation; and should theoverhanging arm be sprung upward by any bulky portion or partpassingtherebetween, the rollers will not be thrown out of vertical line witheach other, and imperfect work froni this cause is avoided.

It is obvious that the form and arrangement of the several parts of myinvention may be varied,'within the limits of mechanical construction,without departing from the nature or spirit of the invention. Y

Having thus described my invention, what I claim isl.V In aseam-pressingmachine, the combination, with a bed, of asetof twoseam-pressingrollers, 7c w, yielding supports for both of said rollers, a second setof seam-pressing rollers, v i i', the rollers t' z" being arranged abovethe roller v and the latter being mounted on a yielding support, and aguide or guides, x between said sets of rollers, all arranged,constructed, and operating substantially as setr ICO IIO

the rear of those first mentioned, all of said rollers being arranged inline with said overhanging arm and with their axles'orjournalshaftssubstantially at right angles thereto, and a guide or guides, x fr',between the two sets of rollers w 7a and c t' i', all constructed,arranged, and operating substantially as and for the purposes set forth.

3. Inaseam-pressing machine, the combination, with a bed and overhangingarm, of a set of two seampressing rollers, w lc, a second set ofseam-pressing rollers, vz' t", located in the rear of those firstmentioned, mechanism, substantially as described, for rotating saidrollers v M', and a guide or guides, xx', between the two sets ofrollers, all constructed, arranged, and operating substantially as set forth. l

4. In aseam-pressing machine, the combination, with the rollers i 'i'and their supports, of means for operatingsaid rollers, consisting of arotary shaft, d, provided with a Worm,f, wornrgear g, and gear-wliee1sht, constructed and operating substantially as and for the pun poses setforth. y

5. In aseam-pressing machine, the combina` tion, with a roller, t, andits support, of means for operating said roller, consisting of a rotaryshaft, n, provided with Worm 0, worm-gear p, gear-wheel q, pulleys r and1", and belt r2, constructed and operating substantially as and for thepurposes set forth.

6. In aseam-pressing machine, the combina tion, with a bed, of standardsss', standard u, arranged between and vertically guided by standards ss', springt, upon which said standard u rests, and a seam-pressingroller supported by said standard u, constructed and operatingsubstantiall y as and for thepurposes set forth.

7. In aseanrpressing machine, the combina tion, with standard u, of ayielding` support therefor, arm u', connected to or iorminga part ofsaid standard, roller v, journaled on the upper end of said standard,and roller w, journaled on said arm, constructed and operatingsubstantially as and for the purposes set forth.

8. In aseam-pressing machine, the combination, with roller k, ot'ayielding supporttherefor, consisting of an overhanging arm providedwith a chamber, as set forth, a rod, j, provided with collarj2 and headj, and spring l, surrounding said rod within the chamber of saidoverhanging arm, constructed and operating substantially as set forth.

9. A roller for seam-pressing machines, consisting ot' the threeseparate disks y g/ y, and the axle or journal-shaft for said roller,the central disk, i, being rigidly secured to said journal-shaft, andthe two disks yy at the sides of the disk y being loose on said shaft,as set forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing Witnesses, this 3d day of March, A. D. 1887.

CHARLES IV. HASELTON.

Witnesses: v

ARTHUR W. CRossLnY, C. F. BROWN.

